METHOD FOR MULTI-SCALE MEASUREMENT OF SHAPE, DISPLACEMENT AND / OR DEFORMATION OF A STRUCTURED WORKPIECE SUBJECTED TO SOLICITATIONS BY CREATING A PLURALITY OF COLORIMETRIC MOUCHETIS

摘要

The invention essentially relates to a method for measuring the displacement and / or deformation of a study piece subjected to an external stress, said method implementing a device for acquiring digital images in color and correlation means of images, characterized in that it comprises the following steps: acquisition (250) of a plurality of digital color images of the surface of the study piece by means of the digital image acquisition device in color during the application of external stress on said study room, • processing (260) digital color images acquired at the step of acquiring a plurality of digital images in color so as to put highlighting contrasting details on varying scales.